Schedule any webpage to open at a specific time.

Found an interesting article but don't have time now? Want to auto-join meetings without watching the clock? Later lets you schedule URLs to open exactly when you need them.

1. Browse to any page
2. Press Option+L (or click the extension icon)
3. Pick a time — or use quick presets: In 1hr, Tonight, Tomorrow
4. The page opens automatically at that time

That's it. No accounts, no cloud, everything runs locally.

• Quick presets — One click to schedule for common times
• Reschedule — Change your mind? Click edit and pick a new time
• Right-click any link — Schedule without opening it first
• Keyboard shortcut — Option+L (Mac) / Alt+Shift+L (Windows/Linux)
• Works offline — Everything runs on your machine

• macOS (Linux support coming)
• uv — fast Python package manager

# Install uv if you don't have it
curl -LsSf https://astral.sh/uv/install.sh | sh

git clone https://github.com/adagradschool/later.git
cd later/daemon
uv sync

Option A: Run manually

cd daemon
uv run python -m later.main

Option B: Auto-start on login (recommended)

./launchd/install.sh

Firefox / Zen:

1. Go to about:debugging#/runtime/this-firefox
2. Click "Load Temporary Add-on..."
3. Select extension/dist/firefox/manifest.json

Chrome / Arc / Edge:

1. Go to chrome://extensions
2. Enable "Developer mode"
3. Click "Load unpacked"
4. Select extension/dist/chrome/

1. Navigate to any webpage
2. Press Option+L
3. Click "In 1hr" or pick a custom time
4. Wait for it to open!

• Option+L (Mac) or Alt+Shift+L (Windows/Linux) opens the popup

• In 1hr — Opens 1 hour from now
• Tonight — Opens at 9 PM (or tomorrow if past 9 PM)
• Tomorrow — Opens at 9 AM tomorrow

Right-click any link → "Schedule for Later (1hr)"

In the popup, hover over a scheduled item and click ✎ to reschedule

Hover over a scheduled item and click × to remove it

┌─────────────────────┐     localhost:7432     ┌──────────────────┐
│  Browser Extension  │ ◄──────────────────────► │     Daemon       │
│  - Popup UI         │                         │  - FastAPI       │
│  - Keyboard shortcut│                         │  - SQLite        │
│  - Context menu     │                         │  - Scheduler     │
└─────────────────────┘                         └──────────────────┘

• Extension — Captures URLs, provides scheduling UI
• Daemon — Stores schedules in SQLite, opens URLs at the right time
• Communication — REST API over localhost

# Run daemon in dev mode
cd daemon
uv run python -m later.main

# Rebuild extension after changes
cd extension
./build.sh

# Stop and remove launchd service
./launchd/uninstall.sh

# Remove the extension from your browser manually

MIT